85415179 ÷ 851 
We want to divide 85415179 by 851.

Step 1:
If we divide 8 by 851, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 851

Moving on to step 2:
If we divide 85 by 851, we get 0 and a remainder of 85.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Grab the next digit (4) from the dividend, add it to 85, then carry on: 854 / 851

Step 3:
The number 851 fits into 854 1 times, leaving a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 3 after subtracting 851 from 854.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 851

Let's proceed to step 4:
When dividing 31 by 851, we get 0 with a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtracting 0 from 31 leaves us with 31.
Fetch the next digit (5) from the dividend, attach it to 31 and continue: 315 / 851

Advancing to step 5:
851 can be fit into 315 0 times, resulting in a remainder of 315.
The number 0 becomes the next digit in our result. 
Result so far: 100.0
If we subtract 0 from 315, we get 315.
Bring next digit (1) of the dividend behind the 315 and repeat the process: 3151 / 851

On to step 6:
If we divide 3151 by 851, we get 3 and a remainder of 598.
Record the quotient 3 as the next digit in the result. 
Result so far: 1003.0
If we subtract 2553 from 3151, we get 598.
Fetch the next digit (7) from the dividend, attach it to 598 and continue: 5987 / 851

Advancing to step 7:
If we divide 5987 by 851, we get 7 and a remainder of 30.
Record the quotient 7 as the next digit in the result. 
Result so far: 10037.0
The remainder is 30 after subtracting 5957 from 5987.
Append the next digit (9) from the dividend to 30 and continue with: 309 / 851

Step 8:
851 goes into 309 0 times with a remainder of 309.
Put 0 as the next digit of the answer. 
Result so far: 100370.0
If we subtract 0 from 309, we get 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Advancing to step 9:
851 goes into 3090 3 times with a remainder of 537.
The number 3 becomes the next digit in our result. 
Result so far: 100370.3
Subtract 2553 from 3090 to get 537.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5370, and continue the process.

Going ahead to step 10:
851 can be fit into 5370 6 times, resulting in a remainder of 264.
Write down 6 as next digit of the result. 
Result so far: 100370.36
If we take 5106 away from 5370, we end up with 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Step 11:
The number 851 fits into 2640 3 times, leaving a remainder of 87.
Put 3 as the next digit of the answer. 
Result so far: 100370.363
Subtract 2553 from 2640 to get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Moving on to step 12:
851 can be fit into 870 1 times, resulting in a remainder of 19.
The next digit of our result is 1. 
Result so far: 100370.3631
Deduct 851 from 870 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 13:
851 goes into 190 0 times with a remainder of 190.
Put 0 as the next digit of the answer. 
Result so far: 100370.3631
Deduct 0 from 190 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 14:
851 can be fit into 1900 2 times, resulting in a remainder of 198.
The number 2 becomes the next digit in our result. 
Result so far: 100370.363102
Deduct 1702 from 1900 and we're left with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Moving on to step 15:
851 goes into 1980 2 times with a remainder of 278.
Put 2 as the next digit of the answer. 
Result so far: 100370.3631022
Deduct 1702 from 1980 and we're left with 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

After the division, we end up with 100370.3631022 and a remainder of 2.78e-06.